Arthur a



A. A. JOHNSON.

TYPE WRITING MACHINE.

APPLICATION FILED OCT. 10. 1917.

1,319,341. Patented 001- 21, 1919.

1-1-1: cowflim rmfidnam 110., WASHINGTON, n. c.

UNITED STATES PATENT OFFICE.

ARTHUR A. JOHNSON, or LYNDI-IURS'I51NEW JERsEY, ASSIGN'QR T UNnERWoon TYPE- WRITER COMPANY, OF NEW YORK, N, Y., A CORPORATION or DELAWARE.

. manually "it is desiredto maintain selectedor setfor TYPE-WRITING MACHINE. 7

Specification of Letters Patent.

Application filed October 10, 1917. a semi No. 195,663.

To all whom it mag concern.- I

Be it known that I ARTHU A. JOHNSON, a citizen of the United States, residing in Lyndhurst, in the'county of Bergen and State of New J ersey, have invented certain new and useful Improvements in Ty e- Writing Machines, of which the following is aspecification.

This invention relates V to an improvement in type-writing machines, and more especially to key-set tabulating' mechanism, and is shown in connection with the disclosures, in the patents to Doane, No. 1,157

stops, accordingto another plan for a difierent type of work. Insome cases, some of the same stops hadto be reset, as the positions of the carriage, which they determined,

were used in several difierent types of I the series of tabulating stops with some work. a The present improvement, therefore, deals with mechanism for. maintalning some of the stops selected when a change is made fromv one type of work to another type of work,

which requires the unsetting of some but not all of the set stops.

Inthisway considerable work is avoided, which otherwise might have to be ;done in unsetti-ng' and resetting unnecessarily which are. already'set. As the rail or bar which unsets the stops. is universal to all of the stops, provision is made for permit ting the rail to restore all of the stops set, and then undoing the work of the restoring rail in the case of certain of thestops which several different classes of work.

.The means for countering or nullifying the work of the unsetting rail consists in placing one or more special stop-resetters stops or controllers each alongside of a semi-permanently selected stop. Each resetter has a spring which can overlie the stop selected. This spring is strong enough to return the stop selected to a set positionafter the spring has yielded when the stop is unset by the rail. The resetters are individually adj ustable'tolany point along the stop-carrying' bar, so as to control any one of the stops which [it is' desired to maintain semi-per ma'nently'set. V r

Other objects and advantages will hereinafter appear. a t i In the accompanying drawings,

, Figure l'is a detail vertical section, taken withparts omitted to from front ,to rear, simplify the showing.

Fig. 2' is a detail perspective view, sh0wmg one of the resetters alongside of a semipermanently selectingfl'stop, both being shown detached from the bar to. disclose more clearly their relation.

Fig. 3 is avertical section, taken from front to rear, showing one of the 'stops as held semi+permanently set by a resctter. Fig. 4;is a detail sectional view right angles to Fig. 3.

Fig. 5 is a contracted perspective view,

showing, on a smaller scale, the series of stops and the rail for unsettingthe samed Fig. 6 1s a rear vlew n elevation, showing of them set; two of the set stops b'eing proparts of the device, type-actions 1 are operated by keys, not shown, in the usualjway to, strike aplaten 2 carried by a carriage 8.

The carriage 3 travels along rails 4: provided on a frame 5 under the control of an escape taken at Patented-Oct. 21,1919.

5 vided with resetters for maintaining them;

ment mechanism,'indicated in general-at 6.

This escapement mechanism is that usually found on Underwood standard typewriting' machines, and includes a rail 7 pivotally connected to the typewriter carriage?) and normally, meshing with a pinion 8. i The pinion 8 is connected by a one-way pawl? and-ratchet (not shown) to an escapement wheel, 9, which is controlled by dogs 10 mounted to rock with the movement of'a I universal frame 11. The universal frame 11 is operated at the actuation of each of the type-actions 1 and controls the stepbystep movement of the carriage 3.

The typewriter carriage 3, in addition to having a step-by-step movement, has a major jump or tabulating movement. To control the tabulating movements of the carriage 3, the usual standard Underwood tabulating mechanism is used. This includes plungers 12 which are projected, at the striking of any one of a series of tabulating' keys, (not shown), into the path of set stops 13 carried by the typewritter carriage 3. The stops 13, of which there are a series, one for each letter-space of the typewriter carriage 3, are settable from an inactive raised position to a depressed active position. These stops 13 are mounted for vertical movement for this purpose on a bar 14 carried by the typewriter carriage 3.

The stops 13 are individually settable. by a key 15 in a manner more fully described in the patents, above-mentioned. Considering this mechanism briefly, the setting key 15, when depressed, rocks a lever 16, which is connected by a link 17 to rock a bell-crank 18. The bell-crank 18 draws down on a link 19, which is guided for vertical movement at 20 and is provided with an overhang 21, so as to project above an individual stop 13 corresponding to the selection of the zone at the printing point of the typewriter for the particular position of the typewriter carriage 3. In this way, the typewriter carriage 3 can be positioned for various major columns or zones and the setting key 15 truck at each of these zones, whereby the particular stop 13, corresponding to this zone, will be depressed to an active position.

The stops 13 are yieldingly locked in their active and inactive positions by spring detents 22. \Vhen in their depressed active positions, the stops 13 are set so thatthey can cooperate with the plungers 12, and thus determine the successive major columns or zones and also the letter-spaces or digitcolumns in the zones, the latter according to the particular plungers 12 operated.

.A number of the stops 13 may be set so as to correspond with a. certain type of work which it is desired to perform. When necessary to carry on some other type of work, the set stops 13 may be returned to their raised inactive positions and other stops set corresponding to the positions of columns or zones in the new kind of Work. For this purpose, there is provided an unsetting rail 23, which is slidingly mounted on the stop bar '14 and has a flange 24, which underlies toes 25 provided on all the stops 13. The

. unsetting rail 23 has cam slots 26 into which extend pins 27 provided on the bar 14. \Vhen the unsetting rail 23 is moved longitudinally of the bar 14 by means of a handle 28, the cam lots 26 will cause the unsetting rail 23 to move vertically, so that the flange 24 will engage the toes 25 of whichever stops 13 happen to be set, as it is universal to all of them, and raise them to their unset posi tions.

In certain cases, it is undesirable to unset all of the stops 13 which happen to be set as some of them may determine columns or zones which are used in several different types of work, and it would be necessary to reset them by hand if they were unset. To avoid this, there are provided semipermanent selecting resetters 29, which are bifurcated so as to straddle the bar 14 in a position alongside of any selected stop 13, which it is desired to maintain set for several different types of work. Anumber of these resetters 29 may be provided according to the number of stops 13 which it is desired to maintain set. Each of the resetters 29 is, in addition to being bifurcated, provided with a split 30, which causes the resetter to be in the nature of a spring, wherebyit will grip the bar 14 and yieldingly maintain it in any position selected. v Each of the resetters 29 is provided with a leaf spring 31 arranged to extend overthe top of one of the next adjusting stops 13, so as to yieldingly hold the same in a depressed inactive position. That is to say, the leaf spring 31 is broad enough to overlie one of the next adjusting stops 13 and will yield when the latter'i moved to an inactive position, but, after the pressure on the same has been removed, will return this stop to a set position. In other words, the leaf spring 31 opposes the action of the unsetting rail 23, but does not prevent this rail from raising all of the stops which have been previously set to an unset position. When the rail 23 is returned toits normal inactive position then the springs 31 cause certain stop 13 to move down to their set positions. The leaf springs 31 may be bent downwardly at 32 for better action.

It will thus be seen that the stops 13 may be set, one by one, to correspond to a "given selection or plan of subsequent zonal or column positions of the typewriter carriage 3. Some of the stops, such as those indicated specifically at 33 and 34, in Fig. 6, may be selected for, semi-permanent setting. That is to say, these particular stop may be used not only in the first plan of column selections for the typewriter carriage 3, but in several other plans of column selections for several dilferent pieces of work. For these stops 33 and 34 the resetters or tabs 29 are provided and are adjustable on the bar 14, so as to have their springs 31 overlie the stops 33 and 34 when set. Thus, subsequently, when one kind of work is finished, and it is desired to use the typewriter for a difi'erent character of work, the unsetting rail 23 may be operated when it will raise all of the set stops 13 to an unset position. The rail 23 is then returned to its normal depressed position when the springs 31 will again depress the stops 33 and 3st to their active set positions. The operative then has merely to set such new column tops 13 as are necessary for the next kind of work and which were not used in the previous piece of work.

Incidentally, the resetters 2 9' prevent the permanent unsetting of a stop 13 in case a plunger 12 should happen to be operated when one of the set stops 13 is located directly over it. Under such circumstances, the plunger 12 when raised would temporarily return the stop 13 to an unset position, but as soon as the carriage 3 moved on or the plunger 12 returned to an inactive position, the spring 31 would return the stop 13 to its set position. 7

It will be understood that this invention also applies to other mechanisms than tabulating mechanism. For instance, the stops or tappet 13 may perform functions other than that of controlling the positioning of the typewriter carriage.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. The combination with a typewriter carriage, of a series of stops settable from inactive positions to active positions for determining the typewriting zones for said carriage, universal unsetting means for said stops, and automatic means for resetting certain of said stops after an action of said universal unsetting means.

2. The combination with a typewriter carriage, of a series of stops settable to de termine the zonal positions of said carriage, manually operable means for rearranging the selected setting of said stops, and means for mechanically preserving the setting of certain selected stops.

3. In a typewriter, in combination, a traveling carriage, and a. tabulator mechanism therefor for positioning the same in predetermined writing zones, said tabulating mechanism comprising a tabulator-stopsup port, a series of tabulator-stops variably settable relatively to said support, means for selectively setting a plurality of said stops in accordance with zones to be determined, a stop-restoring device common to all of said stops, and means operatively related to certain of said set stops for causing said stops to remain in set position at the termination of a restoring action.

4. The combination with a typewriter carriage, of a series of stops for determining the positions of said carriage, a bar on which said stops are adjustably mounted between set and unset positions, and one or more spring resetters adjustable along said bar to cooperate with individuals of said stops to maintain them yieldingly in given positions with respect to said bar.

5. The combination with a carriage, of a series of stops settable to determine the positions of said carriage, a 'bar on which said stops are mounted, and one or more resetters adjustable to different positions on said bar to cooperate with selected ones of said steps so as to determine the permanency of their setting.

6. The combination with a carriage, of a series of stops for determining the zonal positions of said carriage, a bar forming a mounting for said stops, a bifurcated resetter straddling said bar between two of said stops, and a spring secured to said resetter overlying one of the stops on one fside thereof.

7. The combination with a carriage, of a series of stops for determiningthe position of said carriage, a bar forming an adjustable mounting for saidstops, a key for setting said stops, manually operable means for unsetting said stops, and a spring contacting with one of said stops for returning said stop to a set position independently of the remaining stops.

8. The combination with a typewriter carriage, of a series of stops for determining the positions of said carriage, a bar on which said stops are mounted, one or more resetters adjustable between adjacent stops, a lug on each of said resetters projecting to one side thereof, and a spring secured to said lug and engaging a stop on the side to which said lug projects, so as to return this stop to a set position after a disturbing action.

9. The eombinationwith a typewriter carriage, of a series of tappetssettable to two positions, means for permanently re-arranging the selected setting of some of said tappets, and means for mechanically preserving'the setting of certain of said tappets,

nism therefor for positioning the same in predetermined writing zones, said tabulating mechanism comprising a tabulator-stop-support, a series of tabulator-stops variably setstops for causing said stops to remain in set table relatively to said support, means for position at the termination of a restoring selectively setting a plurality of said stops action.

in accordance with zones to be determined, a ARTHUR A. JOHNSON. stop-restoring device common to all of said Witnesses:

stops, and means selectively settable so as to EDITH B. LIBBEY,

be operatively related to certain of said set CATHERINE A. NEWELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). 0. 

